Wrench.



W. H. HUMMEL,

WRENCH.

APPLlcAUmu mio FEB. 14. |917.

Paented OctI 30, 1917.

-.-HV UvN- m,...-:-------- y 1T@ @TATS WILLIAM n. nur/IMEI., or DUBOIS, IDAHO.

Wannen.

Application led February 14, 1917.

To all whom it may concer/lt:

Be it known that I, WILLIAM H. RUMMEL, a citizen of the United States, residing at Bubois, in the county of Fremont and State oi' Idaho, have invented certainneiv and useful improvements in Vrenches; and l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilledy in the art to which it appertains te make and usethe same.

This invention relates to a Wrench of the type employing-a shank having a stationary javv and a movable jaiv thereon and yhas 'for one or' its objects the provision of a means for locking the movable jaw at various adjusted positions upon the shank-by operating the hand grip upon the shank.

Another object of this invention is to provide a plurality of rack teeth upon the shank adapted to be engaged by a locking member carried by the movable jaw and Which is forced into and out of engagement with the rack teeth by moving the hand grip toward and from the movable jaw.

A further object of this invention is the provision of means secured to thel hand grin and slidably connected With the locking member for forcing said locking member into engagement with the rack teeth upon moving the hand grip away from the movable jaw which will lock the movable jaw upon the shank in various adjusted positions.

A still further object of this invention is the provision of a Wrench of the above stated character, Which shall be simple, durable and eliicient and which may be manufactured and sold at a comparatively low cost.

gWith these and other objects in view, as will become more apparent as the description proceeds, the invention consists of the novel features, combination and arrange ment of parts, as will be hereinafter more fully described and claimed.

For a complete*understanding of my invention, reference is to be had to the Jfol-- lowing description and accompanying drawing, in which:

Figure l is a bottom plan vievv of a Wrench constructed in accordance With my invention,

Fig. 2 is a longitudinal sectional View of the same,

K Specication of Letters Patent.

Patenten ocaso, Ieri.

Serial No. 148,499.

Fig. 3 -is a transverse sectional view taken on the line 3-3 of Fig. 2,

F ig. t is a detail perspective view or' the locking member.r f

Fig. 5 is a perspective view of the means for connecting the locking member to the hand grip,

Fig. 6 is a sectional view taken on the line 6 6 of Fig. 2.

Referring in detail to the drawing, the numeral 1 indicates a shank having secured to one end the ordinary stationary javv 2. A body 3 has formed on one end thereof, they ordinary movablejaiv 4 and is slidably supportedfon the shank 1 by straps 5. The body 3 is provided with arecess 6, in which is positioned a locking member 7. The locking member 7 has a straight inner face 8 on which a plurality of teeth 9 are formed and are adapted to intermesh with teeth 10 formed upon the shank 1. The locking member T has an outwardly directed lug 11 formed upon its outer face and the outer face of the locking member 7 inclines in the direction of the lug 11 as shown at 12 and has formed thereon a tenen 13,- thus it Will be seen that the end remote from the end on which the lug 11 is formed, is of greater thickness.

A hand grip 14 is slidably mounted upon the shank l and has oppositely disposed grooves 15 formed upon its inner face in which is adapted to travel a pin 16 carried by the shank.

Stops 17 are formed Within the grooves 15 for engagement with the pin 1G to limit the movement of the hand grip le upon the shank. in arm 1S is secured vto the hand grip by fasteners 19 and project Jforwardly from the hand grip in the direction of the body 3. An extension 20 is formed upon the arm 1S and has oppositely disposedl flanges 21 that are slidably received Within grooves 22 of the body.

The extension 2O increases in thickness in the direction or its free end to provide an inclined face 23 in Which a dove-tail groove 241 is formed for slidably receiving the tenen 13 upon the locking member 7, thus it Will be seen upon moving the hand grip 14 in the direction of the mo fable aw i on the body 3, the extension 2O moves in engage ment With the shoulder 11 upon the locking member 7, thus relieving the tension oi' the locking member against the shank or permitnut or the like`r the hand grip lll is slid up`oTig the shank 1v aivay from the body 3, causing the extension 2O to slide upon the locking n member 7 and force the same in the direction of the shank, causing the teeth thereon to lock with the the teeth upon the shank, thus locking the movable jaiv and body against movement upon the shank. This locking feature is accomplished owing to the inclined face 23 of the extension 2O and the locking face 1Q of the locking member 7 being disposed in opposite directions so that when the enlarged portion of the locking member and the enlarged portion of the extension are bearing against each other, the locking member is forced in the direction of theshank.

F rom the foregoing description taken in connection with the accompanying drawings, it will be noted that a device has een provided whereby the movable jayv e may be readily adjusted With relation to the sta tionary jaw and after being adjusted can be easily and quickly locked in said adjusted position bymoving the hand grip le away from the body or themovable jaiv upon the shank l. lli/Then the hand grip le is in this posit-ion, the locking action will be increased, owing to the fact that when the Wrench is in use, there is always a tendency to pull upon the hand grip 14C and as the pull upon the hand grip lil increases, the Wedging action between the locking member 7 and the extension 20 increases, thus firmly locking the movable jayv in any desired adjusted position.v

While l have shown and described the preferred embodiment of my invention, it will be understood that minor changes in construction, combination and arrangement oi' parts may be made Without departing from the spirit and scope of the invention as claimed.

Vhat is claimed is:

l. A Wrench comprising a shank, a body slidable upon the shank, a movable jaw formed upon the body, said body having a recess, a locking member located Within said recess, teeth forme-d upon said locking mem- After the ber, teeth formed upon the shank and adapted to engage the teeth of the locking member, a hand grip slidable upon the shank, an extension connected to the hand grip and slidably secured to the body and engaging the locking member to cause said locking member to move toward and from the shank to disengage the teeth thereon with the teeth of theshank.

2. A Wrench comprising a shank` a stationary jayv formed on said shank, a body slidable upon said shank, a movable jaiv formed on said body, said body having ya recess, the Walls oi' said body having grooves, a locking member disposed Within the .re` cess and having `an inclined tace, teeth formed on said locking member, teeth formed on the shank and engaging the teeth of the locking member`l a hand grip slidable on the'shank, an arm secured to said hand grip, an extension formed on said arm and having an inclined face for cooperation with Y the inclined face of the locking member, op positely disposed flanges formed upon the extension, and slidable inthe grooves of the Walls of said body. Y

,3. A Wrench comprising a shank, a stationary jaw formed on said shank, a body slidable upon the shank, teeth formed upon the shank, a. movable javv formed on said body, said body having a recess, the walls oi said recess having grooves, a locking member disposed Within the recess and having an inclined face, ashoulder formed von said locking member, teeth formed on saidv loc.;- ing member and adapted to int-ermesh with the teeth orrl the shank, a hand grip slidable upon the shank, an arm secured to the hand grip, an extension formed on said arm and having an inclined face igor cooperation With' the inclined face of the locking member, oppositely disposed flanges formed on said extension and slidable in the grooves of the Walls of the body, said extension having a dove-tail groove in its beveled race, and a tenon formed upon the beveled face of the locking member and slidable Within the dove-tail groove of the inclined face of the extension.

In testimony whereof l aix my signature in presence of two Witnesses.

'WILLM H. RMIWEL, lVitnesses:

J. N. Hoorns, n H. H. Bnsn.

@apice of this patent may te obtained for ve cents caen, by addressing the Commissioner of Eatents, "Washington, D. G. 

